Presencia de contaminación bacteriana en las superficies de prótesis removibles nuevas previas a su colocación en pacientes de la clínica UCSG semestre B-2022.

Abstract

Edentulism is organic failure that is usually observed in seniors. As a solution for this, removable prostheses were created, which are designed by the dentist, but finished in the dental laboratory. However, the risk of cross-contamination can occur at any stage of this process and so, cross- infection can occur from contaminated items sent from laboratories to dental clinics. Objective: To demonstrate the existence of bacterial contamination on the surfaces of new removable prostheses prior to their placement in patients of the UCSG Clinic, Semester B-2022. Materials and Methodology: Forty-five removable prostheses (22 total and 23 partial) delivered by UCSG students in semester B-2022 were used. Before being tested, they were immersed in 25 ml of 0.9% sodium chloride for 3 minutes for subsequent removal and microbiological culture in order to count CFU and isolated microorganisms, these results were placed in charts, averaged and compared to obtain the final results. Final Results: Of the protheses studied, 69% were contaminated, 22% by Gram- negative bacteria and 20% by Grampositive bacteria, 11% by a combination of both, 9% by fungiand 6% by Gram-negative and fungi. The most predominant bacteria were Proteus spp, Streptococcusepidermidis and Escherichia coli. The plastic container was the most contaminated means of transportation. Eighty percent of the students did not decontaminate the removable prostheses. Conclusion: There is a significant presence of contamination in the protheses studied, with a wide bacterial diversity which makes it necessary to implement a disinfection protocol in the process.